378668123 has 4 divisors (see below), whose sum is σ = 380630328. Its totient is φ = 376705920.

The previous prime is 378668111. The next prime is 378668179. The reversal of 378668123 is 321866873.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 378668123 - 2¹⁴ = 378651739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378068123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980813 + ... + 981198.

It is an arithmetic number, because the mean of its divisors is an integer number (95157582).

Almost surely, 2^378668123 is an apocalyptic number.

378668123 is a deficient number, since it is larger than the sum of its proper divisors (1962205).

378668123 is a wasteful number, since it uses less digits than its factorization.

378668123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962204.

The product of its digits is 290304, while the sum is 44.

The square root of 378668123 is about 19459.3967789343. The cubic root of 378668123 is about 723.4684262581.

The spelling of 378668123 in words is "three hundred seventy-eight million, six hundred sixty-eight thousand, one hundred twenty-three".